The "fake news" phenomenon broke out amid the 2016 US presidential election and blew up when Donald Trump, during his first press conference on January 11 as then president-elect, shouted at a CNN reporter: "You are fake news!"

The Czech drive to expose fake news comes as the EU faces several high-stakes national elections where populist parties with anti-EU agendas could make inroads thanks in part to voters being influenced by fake news.